Doom Legacy

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Doom Legacy
Codebase DOSDoom v0.2
Developer(s) faB, Hurdler, Boris Pereira, Wesley Johnson
Development status Active
Written in C
Target Platform Cross-Platform
License GNU General Public License v2+
Source Repository


IRC Channel Freenode #legacy
For more information on this article, visit the Doom Legacy page on the Doom Wiki.
For in-depth information on this port, visit the DL Website.

Doom Legacy is a source port available for DOS, Win32, Linux, OS/2 and MacOS, originally written by Boris Pereira and Denis "faB" Fabris, now maintained by Thierry "Hurdler" Van Elsuwé, with a supporting cast of 40 contributors.

Legacy was originally written as a fork of an early DOSDoom version introducing mouse-look, jumping, a console, 32 player deathmatch, skins and a native win32 mode. The console in its entirety was taken from Quake 1.01, a leaked version of Quake about one to two years before it was GPLed. Fabris developed a glide front-end, one of the first hardware-accelerated renderers. Hurdler was originally introduced to develop GL support, however as time went by, Hurdler increasingly maintained the project. Fabris has now moved on to pastures new, with Boris making an occasional appearance.

Boom compatibility was introduced later by Stephen "SoM" McGranahan, who also introduced Heretic support by merging in code from Heretic/Hexen; and FraggleScript from the port SMMU. SoM also developed some novel modifications, including several varieties of 3D floors and deep water before settling on the current implementation.

SDL is the primary graphics interface, but still has working X11 interface, and older MacOS, OS2, and DOS interfaces are still present.


  • TCP/IP multiplayer networking (including a master server for Internet game searches)
  • Nearly complete Boom and Heretic support
  • OpenGL and software rendering (8, 15, 16, 24, 32 bit and native RGB), windowed and fullscreen
  • Higher resolutions
  • DirectSound 3D
  • Console with support for key bindings (Quake-style bindings)
  • FraggleScript for scripting
  • 3D floors, water (swim, fog, color), and coloured lighting
  • Boom colormaps used in OpenGL mode
  • Free look and crosshairs
  • Jumping
  • 32 Players (including support for custom skins)
  • Supports Linux, MacOS and Windows and others
  • 2 player splitscreen co-op or deathmatch
  • Ability to play Audio CDs during play
  • Chex game support, blocking Doom graphics
  • Savegame directories with 99 savegames per directory. Savegames record PWAD and command line information.
  • DEH Dehacked (and BEX in alpha4)
  • New parameterized Fog linedef in Alpha4
  • Simple Launcher invoked when started without command line parameters (alpha5) to allow starting from icon or menu.
  • Advanced game and display modifications enabled in menus

Recent release history

  • 2003: Legacy 2.0, started a re-write in C++. This is designed to improve the tolerance of the code base to new features. Has Hexen support.
  • 2009: Legacy 1.44, renewed life in the C code path. Updates and bug fixes to most known problems, with more than 250 patches in 2009-2011 (Rev 778, Rev 845). Actively maintained, current bug reporting and SVN repository on SourceForge.
  • 2012: Legacy 1.44 alpha4 (Rev 999)(2012-12-23) on DoomLegacy home page.
  • 2014: Currently available as Legacy 1.44 alpha5 (Rev 1089)(2014-2-16) on DoomLegacy home page.


Doom Legacy was the first source port to implement a software water effect, complete with transparency and one-dimensional column warping. Due to the focus on OpenGL rendering, it was unfinished in Doom Legacy and removed in a later release. The Sonic Robo Blast 2 TC re-implemented this feature with two-dimensional warping effects. The inspiration for this effect came from the Amiga game Alien Breed 3D.

It is accessible in its original form in version 1.28 by typing "dev_water" into the console.

See also

External links